annotate FIRFilter.h @ 9:be59b4a73f49
* Added Spectrogram zero padding functionality
* Made output bins correspond to BPM
* User can now specify a range of output bins to view
* Comments added
author |
Carl Bussey <c.bussey@se10.qmul.ac.uk> |
date |
Tue, 12 Aug 2014 14:40:37 +0100 |
parents |
4e429b9f2b4d |
children |
7680cc4c0073 |
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1 //
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2 // FIRFilter.h
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3 // Tempogram
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4 //
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5 // Created by Carl Bussey on 25/06/2014.
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6 // Copyright (c) 2014 Carl Bussey. All rights reserved.
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7 //
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8
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9 #ifndef __Tempogram__FIRFilter__
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10 #define __Tempogram__FIRFilter__
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11
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12 #include <cmath>
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13 #include <vamp-sdk/FFT.h>
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14 #include <assert.h>
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15
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16 class FIRFilter{
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17 public:
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18 FIRFilter(const unsigned int lengthInput, const unsigned int numberOfCoefficients);
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19 ~FIRFilter();
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20 void process(const float *input, const float *coefficients, float *output);
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21 private:
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22 unsigned int m_lengthInput;
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23 unsigned int m_numberOfCoefficients;
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24 unsigned int m_lengthFIRFFT;
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25
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26 double *fftInput;
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27 double *fftCoefficients;
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28 double *fftReal1;
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29 double *fftImag1;
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30 double *fftReal2;
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31 double *fftImag2;
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32 double *fftFilteredReal;
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33 double *fftFilteredImag;
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34 double *fftOutputReal;
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35 double *fftOutputImag;
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36
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37 void initialise();
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38 void cleanup();
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39 };
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40
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41 #endif /* defined(__Tempogram__FIRFilter__) */
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